alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET ADWARE_PUP Win32/Adware.InstallCommerce.A CnC Checkin";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/iam/i.php?mid="; fast_pattern; startswith;
content:"mac=";
content:"publisherid=";
content:"company=";
content:"pubid=";
content:"advid=";
reference:md5,de97001c3e9a6b5bc11573decf78dff4;
classtype:pup-activity;
sid:2038794; rev:1;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_09_09, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_09;
)